Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

Concord, Buchanan Field (KCCR)

Lat: 37.99167°NLon: 122.05194°WElev: 23.0ft.

Fog

43°F

6°C

Humidity 100%
Wind Speed NE 3 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 43°F (6°C)
Visibility 0.50 mi
Last update 20 Jan 01:20 AM PST
Extended Forecast for

4 Miles E Hercules CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 44. East wind around 7 mph.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. East wind around 9 mph.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 46. East northeast wind around 5 mph.

    Low: 46 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 57. Northeast wind around 6 mph.

    High: 57 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 46. Light and variable wind becoming northwest around 5 mph in the evening.

    Low: 46 °F

    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 60.

    High: 60 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 44. East wind around 7 mph.
Tuesday
Mostly cloudy, with a high near 55. East wind around 9 mph.
Tuesday Night
Mostly cloudy, with a low around 46. East northeast wind around 5 mph.
Wednesday
Cloudy, with a high near 57. Northeast wind around 6 mph.
Wednesday Night
Cloudy, with a low around 46. Light and variable wind becoming northwest around 5 mph in the evening.
Thursday
Partly sunny, with a high near 60.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 58.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Hercules CA
 38.01°N 122.18°W (Elev. 597 ft)
12:26 am PST Jan 20, 2026
1am PST Jan 20, 2026-6pm PST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database